149457440 has 48 divisors (see below), whose sum is σ = 385197120. Its totient is φ = 54347520.

The previous prime is 149457431. The next prime is 149457449. The reversal of 149457440 is 44754941.

It is an interprime number because it is at equal distance from previous prime (149457431) and next prime (149457449).

It is a junction number, because it is equal to n+sod(n) for n = 149457394 and 149457403.

It is not an unprimeable number, because it can be changed into a prime (149457449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40700 + ... + 44219.

It is an arithmetic number, because the mean of its divisors is an integer number (8024940).

Almost surely, 2^149457440 is an apocalyptic number.

149457440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149457440 is an abundant number, since it is smaller than the sum of its proper divisors (235739680).

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

149457440 is a wasteful number, since it uses less digits than its factorization.

149457440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84945 (or 84937 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 149457440 is about 12225.2787289288. The cubic root of 149457440 is about 530.6878928349.

The spelling of 149457440 in words is "one hundred forty-nine million, four hundred fifty-seven thousand, four hundred forty".