77441340 has 48 divisors (see below), whose sum is σ = 228251520. Its totient is φ = 19563840.

The previous prime is 77441327. The next prime is 77441369. The reversal of 77441340 is 4314477.

It is a super-2 number, since 2×77441340² = 11994322281991200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 77441298 and 77441307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32826 + ... + 35105.

It is an arithmetic number, because the mean of its divisors is an integer number (4755240).

Almost surely, 2^77441340 is an apocalyptic number.

It is an amenable number.

77441340 is an abundant number, since it is smaller than the sum of its proper divisors (150810180).

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

77441340 is a wasteful number, since it uses less digits than its factorization.

77441340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67962 (or 67960 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 77441340 is about 8800.0761360343. The cubic root of 77441340 is about 426.2433532100.

The spelling of 77441340 in words is "seventy-seven million, four hundred forty-one thousand, three hundred forty".