1054215378 has 32 divisors (see below), whose sum is σ = 2344204800. Its totient is φ = 351179568.

The previous prime is 1054215353. The next prime is 1054215397. The reversal of 1054215378 is 8735124501.

It is a super-2 number, since 2×1054215378² = 2222740126423365768, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93088 + ... + 103796.

It is an arithmetic number, because the mean of its divisors is an integer number (73256400).

Almost surely, 2^1054215378 is an apocalyptic number.

1054215378 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1054215378 is an abundant number, since it is smaller than the sum of its proper divisors (1289989422).

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

1054215378 is a wasteful number, since it uses less digits than its factorization.

1054215378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12543 (or 12537 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 1054215378 is about 32468.6830345796. The cubic root of 1054215378 is about 1017.7546977734.

Adding to 1054215378 its reverse (8735124501), we get a palindrome (9789339879).

The spelling of 1054215378 in words is "one billion, fifty-four million, two hundred fifteen thousand, three hundred seventy-eight".