137849400 has 288 divisors, whose sum is σ = 513873360. Its totient is φ = 32901120.

The previous prime is 137849381. The next prime is 137849407. The reversal of 137849400 is 4948731.

It is a happy number.

It is a super-3 number, since 3×137849400³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137849407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1006132 + ... + 1006268.

Almost surely, 2^137849400 is an apocalyptic number.

137849400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 137849400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256936680).

137849400 is an abundant number, since it is smaller than the sum of its proper divisors (376023960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

137849400 is a wasteful number, since it uses less digits than its factorization.

137849400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 137849400 is about 11740.9284130345. The cubic root of 137849400 is about 516.5768742096.

The spelling of 137849400 in words is "one hundred thirty-seven million, eight hundred forty-nine thousand, four hundred".