94947840 has 240 divisors, whose sum is σ = 355242888. Its totient is φ = 23298048.

The previous prime is 94947821. The next prime is 94947869. The reversal of 94947840 is 4874949.

It can be written as a sum of positive squares in 4 ways, for example, as 33732864 + 61214976 = 5808^2 + 7824^2 .

It is a tau number, because it is divible by the number of its divisors (240).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 299362 + ... + 299678.

Almost surely, 2^94947840 is an apocalyptic number.

94947840 is a gapful number since it is divisible by the number (90) 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 94947840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177621444).

94947840 is an abundant number, since it is smaller than the sum of its proper divisors (260295048).

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

94947840 is a wasteful number, since it uses less digits than its factorization.

94947840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359 (or 340 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 94947840 is about 9744.1182258838. The cubic root of 94947840 is about 456.2067391271.

The spelling of 94947840 in words is "ninety-four million, nine hundred forty-seven thousand, eight hundred forty".