7942480 has 80 divisors (see below), whose sum is σ = 22748544. Its totient is φ = 2511360.

The previous prime is 7942477. The next prime is 7942481. The reversal of 7942480 is 842497.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7942481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6735 + ... + 7825.

Almost surely, 2^7942480 is an apocalyptic number.

7942480 is a gapful number since it is divisible by the number (70) 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 7942480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11374272).

7942480 is an abundant number, since it is smaller than the sum of its proper divisors (14806064).

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

7942480 is a wasteful number, since it uses less digits than its factorization.

7942480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124 (or 1118 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 7942480 is about 2818.2405858975. The cubic root of 7942480 is about 199.5195132535.

It can be divided in two parts, 794 and 2480, that multiplied together give a triangular number (1969120 = T₁₉₈₄).

The spelling of 7942480 in words is "seven million, nine hundred forty-two thousand, four hundred eighty".