137443380 has 48 divisors (see below), whose sum is σ = 385910784. Its totient is φ = 36549760.

The previous prime is 137443373. The next prime is 137443381. The reversal of 137443380 is 83344731.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137443381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19990 + ... + 25970.

It is an arithmetic number, because the mean of its divisors is an integer number (8039808).

Almost surely, 2^137443380 is an apocalyptic number.

137443380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

137443380 is an abundant number, since it is smaller than the sum of its proper divisors (248467404).

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

137443380 is a wasteful number, since it uses less digits than its factorization.

137443380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6376 (or 6374 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 137443380 is about 11723.6248660557. The cubic root of 137443380 is about 516.0692023045.

The spelling of 137443380 in words is "one hundred thirty-seven million, four hundred forty-three thousand, three hundred eighty".