1400672164 has 6 divisors (see below), whose sum is σ = 2451176294. Its totient is φ = 700336080.

The previous prime is 1400672129. The next prime is 1400672173. The reversal of 1400672164 is 4612760041.

It can be written as a sum of positive squares in only one way, i.e., 1156000000 + 244672164 = 34000^2 + 15642^2 .

It is a super-2 number, since 2×1400672164² = 3923765022008885792, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175084017 + ... + 175084024.

Almost surely, 2^1400672164 is an apocalyptic number.

It is an amenable number.

1400672164 is a deficient number, since it is larger than the sum of its proper divisors (1050504130).

1400672164 is a wasteful number, since it uses less digits than its factorization.

1400672164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350168045 (or 350168043 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 1400672164 is about 37425.5549591452. The cubic root of 1400672164 is about 1118.8679473495.

The spelling of 1400672164 in words is "one billion, four hundred million, six hundred seventy-two thousand, one hundred sixty-four".