1972436 has 6 divisors (see below), whose sum is σ = 3451770. Its totient is φ = 986216.

The previous prime is 1972423. The next prime is 1972441. The reversal of 1972436 is 6342791.

It can be written as a sum of positive squares in only one way, i.e., 1012036 + 960400 = 1006^2 + 980^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246551 + ... + 246558.

It is an arithmetic number, because the mean of its divisors is an integer number (575295).

2^1972436 is an apocalyptic number.

It is an amenable number.

1972436 is a deficient number, since it is larger than the sum of its proper divisors (1479334).

1972436 is a wasteful number, since it uses less digits than its factorization.

1972436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493113 (or 493111 counting only the distinct ones).

The product of its digits is 9072, while the sum is 32.

The square root of 1972436 is about 1404.4344057306. The cubic root of 1972436 is about 125.4106176681.

The spelling of 1972436 in words is "one million, nine hundred seventy-two thousand, four hundred thirty-six".