67769540 has 12 divisors (see below), whose sum is σ = 142316076. Its totient is φ = 27107808.

The previous prime is 67769539. The next prime is 67769543. The reversal of 67769540 is 4596776.

It can be written as a sum of positive squares in 2 ways, for example, as 34199104 + 33570436 = 5848^2 + 5794^2 .

It is a junction number, because it is equal to n+sod(n) for n = 67769491 and 67769500.

It is not an unprimeable number, because it can be changed into a prime (67769543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1694219 + ... + 1694258.

It is an arithmetic number, because the mean of its divisors is an integer number (11859673).

Almost surely, 2^67769540 is an apocalyptic number.

It is an amenable number.

67769540 is an abundant number, since it is smaller than the sum of its proper divisors (74546536).

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

67769540 is a wasteful number, since it uses less digits than its factorization.

67769540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3388486 (or 3388484 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 44.

The square root of 67769540 is about 8232.2257014734. The cubic root of 67769540 is about 407.7038813156.

The spelling of 67769540 in words is "sixty-seven million, seven hundred sixty-nine thousand, five hundred forty".