12277642 has 16 divisors (see below), whose sum is σ = 19891872. Its totient is φ = 5649840.

The previous prime is 12277633. The next prime is 12277663. The reversal of 12277642 is 24677221.

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, 14433 + ... + 15259.

It is an arithmetic number, because the mean of its divisors is an integer number (1243242).

Almost surely, 2^12277642 is an apocalyptic number.

12277642 is a deficient number, since it is larger than the sum of its proper divisors (7614230).

12277642 is a wasteful number, since it uses less digits than its factorization.

12277642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1413.

The product of its digits is 9408, while the sum is 31.

The square root of 12277642 is about 3503.9466320137. The cubic root of 12277642 is about 230.6950743893.

The spelling of 12277642 in words is "twelve million, two hundred seventy-seven thousand, six hundred forty-two".