1638422962 has 8 divisors (see below), whose sum is σ = 2681055792. Its totient is φ = 744737700.

The previous prime is 1638422939. The next prime is 1638422971. The reversal of 1638422962 is 2692248361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37236864 + ... + 37236907.

It is an arithmetic number, because the mean of its divisors is an integer number (335131974).

Almost surely, 2^1638422962 is an apocalyptic number.

1638422962 is a deficient number, since it is larger than the sum of its proper divisors (1042632830).

1638422962 is a wasteful number, since it uses less digits than its factorization.

1638422962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74473784.

The product of its digits is 248832, while the sum is 43.

The square root of 1638422962 is about 40477.4376906444. The cubic root of 1638422962 is about 1178.8955868785.

The spelling of 1638422962 in words is "one billion, six hundred thirty-eight million, four hundred twenty-two thousand, nine hundred sixty-two".