693457380 has 144 divisors (see below), whose sum is σ = 2622582144. Its totient is φ = 144092160.

The previous prime is 693457379. The next prime is 693457399. The reversal of 693457380 is 83754396.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11157 + ... + 38876.

It is an arithmetic number, because the mean of its divisors is an integer number (18212376).

Almost surely, 2^693457380 is an apocalyptic number.

693457380 is a gapful number since it is divisible by the number (60) 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 693457380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1311291072).

693457380 is an abundant number, since it is smaller than the sum of its proper divisors (1929124764).

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

693457380 is a wasteful number, since it uses less digits than its factorization.

693457380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50066 (or 50061 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 693457380 is about 26333.5789440023. The cubic root of 693457380 is about 885.1290437129.

The spelling of 693457380 in words is "six hundred ninety-three million, four hundred fifty-seven thousand, three hundred eighty".