1618972 has 12 divisors (see below), whose sum is σ = 2910040. Its totient is φ = 787536.

The previous prime is 1618963. The next prime is 1618973. The reversal of 1618972 is 2798161.

It is a happy number.

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 not an unprimeable number, because it can be changed into a prime (1618973) 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, 5322 + ... + 5617.

2^1618972 is an apocalyptic number.

It is an amenable number.

1618972 is a deficient number, since it is larger than the sum of its proper divisors (1291068).

1618972 is a wasteful number, since it uses less digits than its factorization.

1618972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10980 (or 10978 counting only the distinct ones).

The product of its digits is 6048, while the sum is 34.

The square root of 1618972 is about 1272.3883055105. The cubic root of 1618972 is about 117.4211814850.

It can be divided in two parts, 16189 and 72, that added together give a palindrome (16261).

The spelling of 1618972 in words is "one million, six hundred eighteen thousand, nine hundred seventy-two".