149285400 has 96 divisors (see below), whose sum is σ = 504878400. Its totient is φ = 36188800.

The previous prime is 149285393. The next prime is 149285407. The reversal of 149285400 is 4582941.

It is an interprime number because it is at equal distance from previous prime (149285393) and next prime (149285407).

It is a super-2 number, since 2×149285400² = 44572261306320000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149285407) 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 23 ways as a sum of consecutive naturals, for example, 4710 + ... + 17909.

It is an arithmetic number, because the mean of its divisors is an integer number (5259150).

Almost surely, 2^149285400 is an apocalyptic number.

149285400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149285400 is an abundant number, since it is smaller than the sum of its proper divisors (355593000).

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

149285400 is a wasteful number, since it uses less digits than its factorization.

149285400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22649 (or 22640 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 149285400 is about 12218.2404625216. The cubic root of 149285400 is about 530.4841902534.

The spelling of 149285400 in words is "one hundred forty-nine million, two hundred eighty-five thousand, four hundred".