1400346660 has 24 divisors (see below), whose sum is σ = 3920970816. Its totient is φ = 373425760.

The previous prime is 1400346641. The next prime is 1400346691. The reversal of 1400346660 is 666430041.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11669496 + ... + 11669615.

It is an arithmetic number, because the mean of its divisors is an integer number (163373784).

Almost surely, 2^1400346660 is an apocalyptic number.

1400346660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1400346660 is an abundant number, since it is smaller than the sum of its proper divisors (2520624156).

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

1400346660 is a wasteful number, since it uses less digits than its factorization.

1400346660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23339123 (or 23339121 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 1400346660 is about 37421.2060201165. The cubic root of 1400346660 is about 1118.7812689158.

The spelling of 1400346660 in words is "one billion, four hundred million, three hundred forty-six thousand, six hundred sixty".