69450490 has 32 divisors (see below), whose sum is σ = 128957184. Its totient is φ = 26915520.

The previous prime is 69450473. The next prime is 69450497. The reversal of 69450490 is 9405496.

It is a super-2 number, since 2×69450490² = 9646741122480200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (69450497) 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, 49600 + ... + 50980.

It is an arithmetic number, because the mean of its divisors is an integer number (4029912).

Almost surely, 2^69450490 is an apocalyptic number.

69450490 is a deficient number, since it is larger than the sum of its proper divisors (59506694).

69450490 is a wasteful number, since it uses less digits than its factorization.

69450490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1542.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 69450490 is about 8333.6960587725. The cubic root of 69450490 is about 411.0472730733.

The spelling of 69450490 in words is "sixty-nine million, four hundred fifty thousand, four hundred ninety".