7533378040 has 32 divisors (see below), whose sum is σ = 17105616000. Its totient is φ = 2985704064.

The previous prime is 7533378037. The next prime is 7533378043. The reversal of 7533378040 is 408733357.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7533378037) and next prime (7533378043).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 7533377984 and 7533378002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7533378043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 859560 + ... + 868279.

It is an arithmetic number, because the mean of its divisors is an integer number (534550500).

Almost surely, 2^7533378040 is an apocalyptic number.

It is an amenable number.

7533378040 is an abundant number, since it is smaller than the sum of its proper divisors (9572237960).

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

7533378040 is a wasteful number, since it uses less digits than its factorization.

7533378040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1727959 (or 1727955 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 40.

The square root of 7533378040 is about 86795.0346506066. The cubic root of 7533378040 is about 1960.3333148256. Note that the first 4 decimals are identical.

The spelling of 7533378040 in words is "seven billion, five hundred thirty-three million, three hundred seventy-eight thousand, forty".