1212497404 has 12 divisors (see below), whose sum is σ = 2122301664. Its totient is φ = 606125504.

The previous prime is 1212497401. The next prime is 1212497413. The reversal of 1212497404 is 4047942121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1212497404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212497401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6532 + ... + 49675.

It is an arithmetic number, because the mean of its divisors is an integer number (176858472).

Almost surely, 2^1212497404 is an apocalyptic number.

It is an amenable number.

1212497404 is a deficient number, since it is larger than the sum of its proper divisors (909804260).

1212497404 is a wasteful number, since it uses less digits than its factorization.

1212497404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61604 (or 61602 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 1212497404 is about 34820.9334165528. The cubic root of 1212497404 is about 1066.3348567332.

The spelling of 1212497404 in words is "one billion, two hundred twelve million, four hundred ninety-seven thousand, four hundred four".