1019972 has 6 divisors (see below), whose sum is σ = 1784958. Its totient is φ = 509984.

The previous prime is 1019971. The next prime is 1020001. The reversal of 1019972 is 2799101.

It can be written as a sum of positive squares in only one way, i.e., 802816 + 217156 = 896^2 + 466^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1019971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127493 + ... + 127500.

It is an arithmetic number, because the mean of its divisors is an integer number (297493).

2^1019972 is an apocalyptic number.

It is an amenable number.

1019972 is a deficient number, since it is larger than the sum of its proper divisors (764986).

1019972 is a wasteful number, since it uses less digits than its factorization.

1019972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254997 (or 254995 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 29.

The square root of 1019972 is about 1009.9366316755. The cubic root of 1019972 is about 100.6613498549.

It can be divided in two parts, 1019 and 972, that added together give a palindrome (1991).

The spelling of 1019972 in words is "one million, nineteen thousand, nine hundred seventy-two".