148457840 has 20 divisors (see below), whose sum is σ = 345164664. Its totient is φ = 59383104.

The previous prime is 148457839. The next prime is 148457879. The reversal of 148457840 is 48754841.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 927782 + ... + 927941.

Almost surely, 2^148457840 is an apocalyptic number.

148457840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

148457840 is an abundant number, since it is smaller than the sum of its proper divisors (196706824).

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

148457840 is a wasteful number, since it uses less digits than its factorization.

148457840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1855736 (or 1855730 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 41.

The square root of 148457840 is about 12184.3276384050. The cubic root of 148457840 is about 529.5021312506.

The spelling of 148457840 in words is "one hundred forty-eight million, four hundred fifty-seven thousand, eight hundred forty".