1019397372 has 60 divisors (see below), whose sum is σ = 2774939496. Its totient is φ = 291248160.

The previous prime is 1019397371. The next prime is 1019397383. The reversal of 1019397372 is 2737939101.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1019397371) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 11122 + ... + 46502.

Almost surely, 2^1019397372 is an apocalyptic number.

1019397372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1019397372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1387469748).

1019397372 is an abundant number, since it is smaller than the sum of its proper divisors (1755542124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1019397372 is an equidigital number, since it uses as much as digits as its factorization.

1019397372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35416 (or 35393 counting only the distinct ones).

The product of its (nonzero) digits is 71442, while the sum is 42.

The square root of 1019397372 is about 31928.0029441241. The cubic root of 1019397372 is about 1006.4244289930.

The spelling of 1019397372 in words is "one billion, nineteen million, three hundred ninety-seven thousand, three hundred seventy-two".