1400738079 has 24 divisors (see below), whose sum is σ = 2026173072. Its totient is φ = 860371200.

The previous prime is 1400738071. The next prime is 1400738081. The reversal of 1400738079 is 9708370041.

It is not a de Polignac number, because 1400738079 - 2³ = 1400738071 is a prime.

It is a super-2 number, since 2×1400738079² = 3924134331921220482, which contains 22 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400738071) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 302409 + ... + 307005.

It is an arithmetic number, because the mean of its divisors is an integer number (84423878).

Almost surely, 2^1400738079 is an apocalyptic number.

1400738079 is a deficient number, since it is larger than the sum of its proper divisors (625434993).

1400738079 is a wasteful number, since it uses less digits than its factorization.

1400738079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5227 (or 5214 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 1400738079 is about 37426.4355636494. The cubic root of 1400738079 is about 1118.8854982144.

The spelling of 1400738079 in words is "one billion, four hundred million, seven hundred thirty-eight thousand, seventy-nine".