1141979638 has 16 divisors (see below), whose sum is σ = 1753804800. Its totient is φ = 557393256.

The previous prime is 1141979627. The next prime is 1141979651. The reversal of 1141979638 is 8369791411.

It is a super-2 number, since 2×1141979638² = 2608234987213222088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1141979591 and 1141979600.

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, 235563 + ... + 240361.

It is an arithmetic number, because the mean of its divisors is an integer number (109612800).

Almost surely, 2^1141979638 is an apocalyptic number.

1141979638 is a deficient number, since it is larger than the sum of its proper divisors (611825162).

1141979638 is a wasteful number, since it uses less digits than its factorization.

1141979638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7611.

The product of its digits is 326592, while the sum is 49.

The square root of 1141979638 is about 33793.1892250495. The cubic root of 1141979638 is about 1045.2482604228.

The spelling of 1141979638 in words is "one billion, one hundred forty-one million, nine hundred seventy-nine thousand, six hundred thirty-eight".