7421377040 has 160 divisors (see below), whose sum is σ = 21610402560. Its totient is φ = 2302617600.

The previous prime is 7421377003. The next prime is 7421377079. The reversal of 7421377040 is 407731247.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (35).

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, 1408010 + ... + 1413270.

It is an arithmetic number, because the mean of its divisors is an integer number (135065016).

Almost surely, 2^7421377040 is an apocalyptic number.

7421377040 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 7421377040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10805201280).

7421377040 is an abundant number, since it is smaller than the sum of its proper divisors (14189025520).

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

7421377040 is a wasteful number, since it uses less digits than its factorization.

7421377040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5521 (or 5515 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 35.

The square root of 7421377040 is about 86147.4145868580. The cubic root of 7421377040 is about 1950.5698128773.

The spelling of 7421377040 in words is "seven billion, four hundred twenty-one million, three hundred seventy-seven thousand, forty".