1201400396 has 24 divisors (see below), whose sum is σ = 2448139680. Its totient is φ = 505170432.

The previous prime is 1201400357. The next prime is 1201400399. The reversal of 1201400396 is 6930041021.

It is not an unprimeable number, because it can be changed into a prime (1201400399) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 403301 + ... + 406268.

It is an arithmetic number, because the mean of its divisors is an integer number (102005820).

Almost surely, 2^1201400396 is an apocalyptic number.

It is an amenable number.

1201400396 is an abundant number, since it is smaller than the sum of its proper divisors (1246739284).

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

1201400396 is a wasteful number, since it uses less digits than its factorization.

1201400396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809633 (or 809631 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 1201400396 is about 34661.2232328866. The cubic root of 1201400396 is about 1063.0717814878.

The spelling of 1201400396 in words is "one billion, two hundred one million, four hundred thousand, three hundred ninety-six".