145400464 has 40 divisors (see below), whose sum is σ = 323506080. Its totient is φ = 62611200.

The previous prime is 145400459. The next prime is 145400471. The reversal of 145400464 is 464004541.

It is a super-2 number, since 2×145400464² = 42282589862830592, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18397 + ... + 25084.

It is an arithmetic number, because the mean of its divisors is an integer number (8087652).

Almost surely, 2^145400464 is an apocalyptic number.

It is an amenable number.

145400464 is an abundant number, since it is smaller than the sum of its proper divisors (178105616).

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

145400464 is a wasteful number, since it uses less digits than its factorization.

145400464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43519 (or 43513 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 145400464 is about 12058.2114760026. The cubic root of 145400464 is about 525.8419916034.

The spelling of 145400464 in words is "one hundred forty-five million, four hundred thousand, four hundred sixty-four".