1220457076 has 24 divisors (see below), whose sum is σ = 2181924864. Its totient is φ = 597111840.

The previous prime is 1220457061. The next prime is 1220457137. The reversal of 1220457076 is 6707540221.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 73681 + ... + 88711.

It is an arithmetic number, because the mean of its divisors is an integer number (90913536).

Almost surely, 2^1220457076 is an apocalyptic number.

It is an amenable number.

1220457076 is a deficient number, since it is larger than the sum of its proper divisors (961467788).

1220457076 is a wasteful number, since it uses less digits than its factorization.

1220457076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15471 (or 15469 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 1220457076 is about 34935.0408043271. The cubic root of 1220457076 is about 1068.6631559178.

Adding to 1220457076 its reverse (6707540221), we get a palindrome (7927997297).

The spelling of 1220457076 in words is "one billion, two hundred twenty million, four hundred fifty-seven thousand, seventy-six".