1400378875 has 16 divisors (see below), whose sum is σ = 1997341632. Its totient is φ = 960259200.

The previous prime is 1400378843. The next prime is 1400378911. The reversal of 1400378875 is 5788730041.

It is not a de Polignac number, because 1400378875 - 2⁵ = 1400378843 is a prime.

It is a super-2 number, since 2×1400378875² = 3922121987092531250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 799342 + ... + 801091.

It is an arithmetic number, because the mean of its divisors is an integer number (124833852).

Almost surely, 2^1400378875 is an apocalyptic number.

1400378875 is a deficient number, since it is larger than the sum of its proper divisors (596962757).

1400378875 is an equidigital number, since it uses as much as digits as its factorization.

1400378875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1600455 (or 1600445 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 43.

The square root of 1400378875 is about 37421.6364553984. The cubic root of 1400378875 is about 1118.7898480444.

The spelling of 1400378875 in words is "one billion, four hundred million, three hundred seventy-eight thousand, eight hundred seventy-five".