1052438390 has 8 divisors (see below), whose sum is σ = 1894389120. Its totient is φ = 420975352.

The previous prime is 1052438381. The next prime is 1052438461. The reversal of 1052438390 is 938342501.

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

It is a super-2 number, since 2×1052438390² = 2215253129491584200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1052438390.

It is a congruent number.

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, 52621910 + ... + 52621929.

It is an arithmetic number, because the mean of its divisors is an integer number (236798640).

Almost surely, 2^1052438390 is an apocalyptic number.

1052438390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1052438390 is a deficient number, since it is larger than the sum of its proper divisors (841950730).

1052438390 is a wasteful number, since it uses less digits than its factorization.

1052438390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105243846.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 1052438390 is about 32441.3068479061. The cubic root of 1052438390 is about 1017.1825329090.

The spelling of 1052438390 in words is "one billion, fifty-two million, four hundred thirty-eight thousand, three hundred ninety".