1400626985 has 4 divisors (see below), whose sum is σ = 1680752388. Its totient is φ = 1120501584.

The previous prime is 1400626973. The next prime is 1400626999. The reversal of 1400626985 is 5896260041.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 604766464 + 795860521 = 24592^2 + 28211^2 .

It is a cyclic number.

It is not a de Polignac number, because 1400626985 - 2⁶ = 1400626921 is a prime.

It is a super-2 number, since 2×1400626985² = 3923511902220380450, 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 3 ways as a sum of consecutive naturals, for example, 140062694 + ... + 140062703.

It is an arithmetic number, because the mean of its divisors is an integer number (420188097).

Almost surely, 2^1400626985 is an apocalyptic number.

It is an amenable number.

1400626985 is a deficient number, since it is larger than the sum of its proper divisors (280125403).

1400626985 is an equidigital number, since it uses as much as digits as its factorization.

1400626985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280125402.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 1400626985 is about 37424.9513693739. The cubic root of 1400626985 is about 1118.8559174399.

The spelling of 1400626985 in words is "one billion, four hundred million, six hundred twenty-six thousand, nine hundred eighty-five".