1400464 has 20 divisors (see below), whose sum is σ = 2922556. Its totient is φ = 646272.

The previous prime is 1400453. The next prime is 1400479. The reversal of 1400464 is 4640041.

It can be written as a sum of positive squares in 2 ways, for example, as 921600 + 478864 = 960^2 + 692^2 .

It is a super-2 number, since 2×1400464² = 3922598830592, which contains 22 as substring.

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, 3159 + ... + 3574.

2^1400464 is an apocalyptic number.

It is an amenable number.

1400464 is an abundant number, since it is smaller than the sum of its proper divisors (1522092).

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

1400464 is a wasteful number, since it uses less digits than its factorization.

1400464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6754 (or 6748 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1400464 is about 1183.4120161634. The cubic root of 1400464 is about 111.8812516923.

The spelling of 1400464 in words is "one million, four hundred thousand, four hundred sixty-four".