551462840 has 128 divisors (see below), whose sum is σ = 1368576000. Its totient is φ = 199180800.

The previous prime is 551462803. The next prime is 551462867. The reversal of 551462840 is 48264155.

It is a super-2 number, since 2×551462840² = 608222527801731200, 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 551462840.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2887145 + ... + 2887335.

It is an arithmetic number, because the mean of its divisors is an integer number (10692000).

Almost surely, 2^551462840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551462840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (684288000).

551462840 is an abundant number, since it is smaller than the sum of its proper divisors (817113160).

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

551462840 is a wasteful number, since it uses less digits than its factorization.

551462840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381 (or 377 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 35.

The square root of 551462840 is about 23483.2459425864. The cubic root of 551462840 is about 820.0470129698.

The spelling of 551462840 in words is "five hundred fifty-one million, four hundred sixty-two thousand, eight hundred forty".